// SCAN REPORT

MCP Filesystem Server

17 tools. 9 can modify or destroy data without limits.

9 write tools that can modify data. Rate limits recommended.

Last updated: 4 Oct 2026

9 can modify or destroy data

8 read-only

17 tools total

Community server · catalogue entry checked 04/10/2026

How to control MCP Filesystem Server ↓

TOOL MAP

What MCP Filesystem Server exposes to your agents

Read (8) Write / Execute (9) Destructive / Financial (0)

Running more than one server? Check your whole stack →

MOST DANGEROUS TOOLS

High Risk

The most dangerous MCP Filesystem Server tools

Execute · Critical bash_command Bash command execution is a core Execute category risk because it can invoke arbitrary shell operations (loops, pipes, subshells, external tools) with outcomes dependent entirely on the command string argument. Execute · High bash_execute This tool allows running arbitrary Bash commands, which can perform virtually any action depending on the arguments provided—from reading files to modifying system state, running external programs, or accessing network r Execute · High bash_pipe This tool executes shell commands with potential side effects determined by the piped command arguments. Execute · High curl_request This tool executes external HTTP requests, which can trigger side effects on remote systems depending on the request parameters (POST, PUT, DELETE operations).

9 of MCP Filesystem Server's 17 tools can modify, destroy, or commit something on every call — and an agent calls them with no built-in limits.

POLICY

How to control MCP Filesystem Server

PolicyLayer is an MCP gateway — it sits between your AI agents and MCP Filesystem Server, and nothing reaches the server without passing your rules. These are the rules we recommend:

Rate limit write operations

{
  "create_directory": {
    "limits": [
      {
        "counter": "create_directory_per_hour",
        "window": "hour",
        "max": 30,
        "scope": "grant"
      }
    ]
  }
}

Prevents bulk unintended modifications from agents caught in loops.

Cap read operations

{
  "directory_tree": {
    "limits": [
      {
        "counter": "directory_tree_per_minute",
        "window": "minute",
        "max": 60,
        "scope": "grant"
      }
    ]
  }
}

Controls API costs and prevents retry loops from exhausting upstream rate limits.

Create a free account and register MCP Filesystem Server — nothing to install.
Add these rules — paste them, or build them visually. Tune the limits to your setup.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

ENFORCE POLICY ON MCP FILESYSTEM →

Instant setup, no code required.

FULL CATALOGUE

All 17 MCP Filesystem Server tools

EXECUTE 5 tools

Execute bash_command Execute a bash command with detailed output and monitoring. Execute bash_execute Execute a Bash command directly with output capture. Execute bash_pipe Execute a sequence of Bash commands piped together. Execute curl_request Execute a curl request to an external HTTP API. Execute execute_command Execute a system command with security restrictions.

WRITE 4 tools

Write create_directory Create a new directory or ensure a directory exists. Can create multiple Write edit_file Make line-based edits to a text file. Each edit replaces exact line sequences Write move_file Move or rename files and directories. Can move files between directories Write write_file Create a new file or completely overwrite an existing file with new content.

READ 8 tools

Read directory_tree Get a recursive tree view of files and directories as a JSON structure. Read get_file_info Retrieve detailed metadata about a file or directory. Returns comprehensive Read get_metrics Returns performance metrics about server operations. Read list_allowed_directories Returns the list of directories that this server is allowed to access. Read list_directory Get a detailed listing of all files and directories in a specified path. Read read_file Read the complete contents of a file from the file system. Read read_multiple_files Read the contents of multiple files simultaneously. This is more Read search_files Recursively search for files and directories matching a pattern.

EXPLORE

Related servers

Other MCP servers with similar tools — same risk classification, starter policies for each.

FAQ

Questions about MCP Filesystem Server

How do I prevent bulk modifications through MCP Filesystem Server? +

The MCP Filesystem Server server has 4 write tools including create_directory, edit_file, move_file. Set a rate limit in your policy -- for example, 10 calls per hour prevents an agent from making more than 10 modifications per hour. PolicyLayer enforces this at the gateway, before calls reach MCP Filesystem Server.

How many tools does the MCP Filesystem Server MCP server expose? +

17 tools across 3 categories: Execute, Read, Write. 8 are read-only. 9 can modify, create, or delete data.

How do I enforce a policy on MCP Filesystem Server? +

Register the MCP Filesystem Server MCP server in PolicyLayer, apply the suggested rules above (adjust the limits to your use case), and point your AI client at the PolicyLayer proxy URL instead of the server directly. Your agents keep the same tools; PolicyLayer evaluates every call against policy before it executes. Nothing to install, live in minutes.

Enforce policy on every MCP Filesystem Server tool call.

Deterministic rules across all 17 MCP Filesystem Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

ENFORCE POLICY ON MCP FILESYSTEM →

Instant setup, no code required.

17 MCP Filesystem Server tools catalogued and risk-classified — across an index of 46,500+ MCP servers.

// WHERE THIS COMES FROM

These policies come from MCP Filesystem Server's registry record.

The record behind this page: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.

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